Floor-surfacing machine.



APPLICATION HLED JUNE16,I913.

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M. L. SCHLUETER.

FLOOR SURFACING MACHINE.

APPLICATION F'ILED JUNE 16. 1913.

Patented Mar. 20, 1917.

1,219,670. Fi fi 2 SHEETSSHEET 2- UNITED STATES PATENT ()FFIC; i;

MAX I. SGI-ILUETER, OF CHICAGO, ILLINOIS.

rLoon-sonrAcING MACHINE.

Specification of Letters Patent.

Patented Mar. so, 1917.

Application filed June I6, 1913. Serial No. 773,811.

To all whom it may concern:

Be it known that 1, MAX L. SCHLUETER, a citizen of the United States, residing in Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improve entin Floor-Surfacing Machines, of which the following is a specification.

- This invention'relates to improvements in floor surfacing machines and is in the nature of an improvement onv the surfacing machine described in Patent No. 882,847, issued to me March 21, 1 07.

Objects of the in ention are to provide a surfacing machine whiclris adapted to treat 'QIS; to provide a caster wheel yieldingly and adjustably supported relatively to the guiding handle of the machine; and to provide means for holding the surfacing roller clear from the floor when the edge roller is being interchanged or other parts are being adjusted or repaired.

The invention further consists in the im provements in the parts and devices, and in the novel combinations of the parts and devices as herein shown, described or claimed.

In the drawing forming a part of this specification, Figure 1 is a side elevationof a surfacing machine embodying my improvements; Fig. 2 is a top or plan view of the structure illustrated in Fig. 1; Fig. 3 is a transverse vertical section through the main surfacing roller and immediateparts and showing edge surfacing roller in elevation; and Fig. 4 is a broken longitudinal sectional view taken substantially on the line. 44 of Fig. 3.

In said drawing 10 designates the frame of the machine to which are detachably secured side plates 11, provided with journal bearing guides 12, the latter having slidably mounted therein bearings 13 adjustably and yieldingly supported by springs 14 and ad-- justing rods 15. Mounted in the bearings 13 is a'transversely extending sleeve 16 the latter having secured thereto at one end, a sprocket gear 17 by which said sleeve is driven,--thesprooket gear 17 beingrotated by means of a sprocket chain 18which takes over and is driven by a sprocket gear 19- mounted on one end of the armature shaft of any suitable form of motor, 20, the latter being supported on the frame 10 and located substantially directly above supporting wheels 21 on which the frame 10 is'inounted, the wheels 21 adapting the machineto be easily moved back and forth over a floor as will be understood.

Secured to the sleeve 16 and located between theside plates '11, is a'main surfacing roller fheiesurfadecf said nine bein provided with sand-paper or othermaterial suitable for treating the floor. Extending entirely through said sleeve 16 is a shaft 23, thelatter being held in place in'the sleeve 16 and prevented. from rotation relatively thereto by a pin 24 engaging ina 'slot 25' on the end of the sleeve 16, the pin being held in the slot bya nut 26 threaded on the opposite end of the shaft 23 and engaging the end of'the sleeve 16. On the-end of the a shaft 23', located on the opposite side of the machine to that on which the driving mechanism is located, is mounted 'anedge or supplemental surfacing roller 27 which, as clearly 'shown in the drawing, is entirely clear of the frame of the machine and all of its parts, thereby adapting the machine to treat the edges .of floors directly up to the walls. d

The surfacing rollers and frame are yieldingly su ported in front of the wheels 21 by caster w eels 28, these caster wheels being so arranged that when no downward force is exerted on the surfacing rollers the latter will be held approximately one-half inch above the floor. with the usual. dust collecting pipe 29 and fan 30, the latter being driven from the motor 20 through the belt 31. Secured to the top of the motor or to any other suitable The machine is provided a part of the frame and extending rearwardly is a guiding handle 32, the latter also carrying a switch 33 for governing the motor,

said switch being represented conventionally in the drawings. Secured to the under side of the handle 32 is a bracket 34 in which isslidably mounted a sleeve 35,.the latter maul the wheel 41 and rod 40' being cushioned the han dle 32.

with respect to the sleeve 35 by means of the spring-4C2. The rod 40 is provided with a small foot tread 4:3 whereby the operator may hold the wheel 41 down while lifting At the front of the machine is provideda bolt or other suitable device 14 by which the surfacing rollers may be held relatively high above the floor whe'n the edge surfacing roller is being interchanged or the Y machine otherwise repaired.

From the preceding description, it will be seen that by mounting the motor directly over the supporting wheels 21, the machine is made more compact than the construction described in my said patent and furthermore the weight is brought more directly over the surfacing rollers, and by mounting the rear caster wheel 41 yieldingly and adjustably relatively to the handle 32 I am enabled to vary the pressure exerted upon the surfacing rollers, at the same time allowing the machine to accommodate itself to any un-' usual unevenness in the floor and also relieving the operator from the necessity of holding up the handle 32 to maintain the pressure on the surfacing rollers.

Although I have herein shown and described what Inow consider the preferred embodiment of my improvements, yet it will be understood that various changes and modifications may be made in-the parts and arrangements of the parts without departing from the spirit of the invention, and all such changes and modifications as contemplated to come within the scope of the claims appended hereto.

As shown in dotted lines in Fig. 3, the edge surfacing roller is adapted to be placed on the opposite side of the machine to that shown in full in said figure, thereby adapting the machine to treat all edge portions of a iioor directly up to the corners of a room.

I claim 1. A floor surfacing machine, including in combination: a frame; a main surfacing roller carried by said frame and mounted in adjustable, yieldable bearings; an edge surfacing roller carried by said frame and located outside thereof to thereby adapt the machine for treating the ed e portions of floors directly up to the wal s; and means yieldably connected with said frame; a ban- .dle extended rearwardly from the machine; and a rear caster wheel adjustably connected to said handle to thereby regulate the pressure placed upon the surfacing roller, substantially as specified.

3. A floor surfacing machine, including in combination: a frame mounted on supporting wheels; a surfacing roller carried by said frame and located in front of the supporting' wheels; means for operating said roller;

front and rear caster wheels yieldingly connected to said frame, the rear caster wheel being also vertically adjustable to thereby regulate the pressure placed upon the surfacing roller, substantially as specified.

1. A floor surfacing machine, including in combination, a frame adapted to be moved over the floor, an edge surfacing roller carried by said frame. and located at one side thereof, said edge roller being detachably mounted on the frame and adapted to be placed on either side thereof and thereby adapt the machine to treat the edge portion of floors in the corners, means for rotating said roller mounted above said roller and supported in part thereby, and means for regularly varying the amount of weight supported by said roller whenin operative position, substantially as specified. 5. A floor surfacing machine including, in combination, a frame having a pair of wheels arranged upon a transverse axle, a surfacing roller in front of said axle, and power mechanism located directly above said axle, said frame being tiltable forwardly to cause part of the weight of said power mechanism to be borne directly by said roller, substantially as specified.

- MAX L. SCHLUETER. 

